Cap: 6-12 cm, hemispherical when young, later convex and pulvinate, smooth surface, finely tomentose to glabrous, somewhat scurfy when older, if wet greasy, if drying sometimes cracked, light gray brown or light red brown, margin acute, projecting somewhat beyond the tubes, at times somewhat cleft.
Hymenophore: pores are whitish, later light gray and brownish when bruised, notched at the stem.
Spore print: brown
Spore: fusiform, (13,5)14,5-18,8(17,5) x 5-6,5 μm
Stem: 8-15 x 1-2 cm, cylindric or gradually enlarging toward the base, ground color whitish to somewhat yellowish and densely covered with gray brown to blackish scabers, apex is first whiitsh, dry, base concolorous, solid, corticate, flesh white to dingy white, never discoloring when cut.
Flesh: whitish, if cracked sometimes on stem apex very weakly pink, rarely more intense pink, under the cup cuticle often with narrow gray brown stripes, on base pale yellow or lemon yellow, sometimes bluish, firm when young, later soft, in stem fibrous and hard, not discoloring when cut, odor pleasantly, taste mild to weakly unpleasant sour.
Habitat: in forests, heaths, moors, along forest edges, under birch, grows from summer to fall.